Thomann CTG-10 Clip Tuner

Bought this mainly for home use, as I have a pedal tuner for other purposes.

Although it's very light, it does feel nice in the hand - the finish of the plastic is not glossy, rather satin like, almost rubbery, which definitely feels better than just cheapo plastic.
Operation is very straight forward - You hold the button for a second or so for it to turn on, and voila. It is chromatic, and it's both for guitar and for bass. Also, a very nice touch is the fact that there is a backlight , it's blue when You're out of tune, then the entire screen lights up green when You hit the pitch, so it's well suited for low light situations. So, thus far, all good.

The cons that I've stumbled upon are such - on guitars, that aren't exceptionally resonant, it doesn't really pick up the thinner strings all that well - it definitely works, and is usable, but it's not fast as sometimes it won't pick up the vibrations. I've tried it on strats, teles, les pauls, a couple of basses and a classical guitar, and it seems to jump around a fair bit on the strat, less so on the tele and LP, BUT seems to work outstandingly well with basses.
So, if You're buying this for home use, of maybe studio, it is fine - does it's job, sometimes hunts around. All of this is absolutely acceptable, especially considering the price point.
But if You're looking for something fast and responsive for, let's say, live situations, I'd opt for something that's faster/more accurate.

I’ve owned Clip tuners before and their operation was super easy - hit a string, tuner picks up the note, and as you tune the led needle goes sharp or flat until you’re spot on.

This one is suppose to do the same, but unfortunately as you tune it doesn’t keep that note ‘alive’ on screen so you can’t see if you go up or down, and definitely can’t see when you’re in tune. You have to keep stroking that same string again and again to see how far you’ve come along towards that green confirmation that you’re in tune.

It also doesn’t even pick up the right string most times, which is really strange and frustrating.

Maybe mine is defected, who knows, I’ve seen some really good reviews here, so hopefully no one else has that problem. I guess you could expect that for the very cheap price.

The "Thomann CTG-10 Clip Tuner" is one of the cheapest tuners you can buy, because of the low price you could be forgiven for thinking it's not going to much use but it's actually a pretty accurate and useful little tuner.
I usually tune with a BOSS TU-3 pedal tuner when I'm using on my pedal board but thought a little clip on tuner would be useful so that I could tune up without having to plug in and power up my pedal board for a quick practice session, the CTG-10 couldn't be handier for the job.
So far I have used it on my Fender Stratocasters, Fender Telecasters, Fender Mustang, Gibson Les Paul, Gibson SG, Gibson ES335, Epiphone Casino, Danelectro DC59 as well as my Gibson Hummingbird, Martin D28 and Art & Lutherie acoustics and the clip has accommodated all the different headstock shapes and thicknesses with ease.
The tuner is very simple and intuitive to use, a single button turns the unit on and off and the same button toggles between the three modes which are "guitar", "bass" and "chromatic".
To turn the tuner on the button needs to be held down for a couple of seconds so it won't be turned on accidentally in a gig bag or case.
The screen is easy to read and is bright enough to use in the dark but can be a little difficult to see it in daylight or under bright lights.
I have experimented using it along with my BOSS TU-3 and the results are pretty much the same.
It usually works as soon as it's clipped on and only very invasion ally do I need to reposition it to get it to work.
It's small enough that it can be left on the guitar when put away into a hard case and it's cheap enough that you can have one in every case.
All in all a very handy and capable little tuner, really very good value for money.